noun, feminine/astɾoˈnautika/
astronautics
Etymology tree Proto-Indo-European *h₂eHs- Proto-Indo-European *-tḗr Proto-Indo-European *h₂stḗr Proto-Hellenic *astḗr Ancient Greek ἀστήρ (astḗr) Ancient Greek ἄστρον (ástron)der. French astro- Proto-Indo-European *(s)neh₂- Proto-Indo-European *néh₂us Ancient Greek ναῦς (naûs) Proto-Indo-European *-tósder. Ancient Greek -της (-tēs) Ancient Greek ναύτης (naútēs)der. French -naute French astronaute Proto-Indo-European *-ikos Proto-Italic *-ikos Latin -icuslbor. Old French -ique Middle French -iqu